Environment-friendly plastic particle granulating device

Abstract

The utility model relates to the technical field of plastic particle granulation, and provides an environment-friendly plastic particle granulation device which comprises a rack, a hollow machine barrel arranged on the rack and a heating assembly arranged on the machine barrel. A feeding port is formed in the peripheral wall of the end, close to the machine barrel, of the machine barrel; the end face of one end of the machine barrel is provided with a feeding port, the end face of the other end of the machine barrel is provided with a discharging port, a screw extruder is arranged in the machine barrel, and the screw extruder is used for extruding plastic entering from the feeding port into a molten state or a softened state through heating of a heating assembly into strips and pushing the strips to the discharging port; a pipeline is fixedly arranged on the peripheral wall, located between the heating assembly and the discharging opening, of the machine barrel in a penetrating mode, an observation opening used for checking the plastic in the molten state or the softened state is formed in the peripheral wall of the pipeline, and a transparent plate is arranged at the position, located at the observation opening, of the pipeline. The end, away from the machine barrel, of the pipeline communicates with an exhaust pipe. The device has the beneficial effect of reducing emission of waste gas.

Description

Technical Field

[0001] The present application relates to the technical field of plastic particle granulation, and in particular to an environmentally friendly plastic particle granulation device. Background Art

[0002] In the process of plastic recycling and reuse, the granulation of plastic particles is one of the key steps, which is specifically carried out through a granulation device. The plastic particle granulation device in the prior art specifically includes a barrel with a hollow interior and a heating component arranged on the barrel, wherein the outer peripheral wall of the barrel is provided with a feed port, and the other end of the barrel is provided with a discharge port. The barrel is equipped with a screw extruder. The screw extruder is used to heat the plastic entering from the feed port through the heating component to a molten or softened state and extrude the plastic into strips, and push it toward the discharge port so that the strips of plastic can be pelletized and recycled with the subsequent pelletizing device.

[0003] Since recycled plastics may contain various chemicals, volatile organic compounds (VOCs), hydrogen sulfide, ammonia, thiols and other compounds will be released during the heating or melting process. If discharged from the outlet, these compounds may be harmful to human health and cause pollution to the environment, forming waste gas emissions. Therefore, further improvement is needed. Utility Model Content

[0004] In order to reduce the emission of waste gas, the present application provides an environmentally friendly plastic particle granulation device.

[0005] This application provides an environmentally friendly plastic granulation device, which adopts the following technical solutions:

[0006] An environmentally friendly plastic particle granulation device includes a frame, a barrel with a hollow interior arranged on the frame, and a heating component arranged on the barrel, the outer peripheral wall of the barrel close to one end thereof is provided with a feed port, and the end face of the other end of the barrel is provided with a discharge port, the barrel is equipped with a screw extruder, the screw extruder is used to heat the plastic entering from the feed port through the heating component to a molten state or a softened state, extrude the plastic into strips, and push it toward the discharge port; the outer peripheral wall of the barrel between the heating component and the discharge port is fixedly penetrated with a pipe, the outer peripheral wall of the pipe is provided with an observation port for viewing the molten state or the softened state, and the pipe is provided with a transparent plate at the observation port; the end of the pipe away from the barrel is connected to an exhaust pipe, and the exhaust pipe is provided with a treatment component for treating the generated waste gas.

[0007] By adopting the above technical solution, a pipe is provided between the heating component and the discharge port, and an observation port is provided on the outer peripheral wall of the pipe, which is sealed by a transparent plate so that the plastic in a molten or softened state can be viewed through the transparent plate and the observation port to reduce the possibility of incomplete melting. In order to reduce the opening amount of the exhaust pipe between the heating component and the discharge port and the processing difficulty caused by the corresponding opening, an exhaust pipe is directly provided on the pipe and a processing component is provided in the exhaust pipe. The waste gas generated by the plastic in a molten state after heating can be discharged after being treated by the processing component, thereby reducing the emission of waste gas.

[0008] Preferably, the observation port is arranged in a ring shape around the axis of the pipeline.

[0009] By adopting the above technical solution, the observation port is arranged in a ring shape around the axis of the pipe, so that the transparent plate is arranged corresponding to the pipe, thereby increasing the observable range and making it easier for natural light from the outside to pass through the transparent plate to observe the plastic in the molten or softened state.

[0010] Preferably, the exhaust pipe is detachably connected to the pipeline, and the processing component includes an adsorption layer built into the exhaust pipe and an air pump fixedly connected to the exhaust end of the exhaust pipe, and several adsorption layers are arranged at intervals along the length direction of the exhaust pipe.

[0011] By adopting the above technical solution, several adsorption layers are provided, and the exhaust gas is adsorbed as the vacuum pump draws the gas, so as to improve the adsorption effect of the exhaust gas. As the exhaust gas is used, the adsorption layer set close to the pipeline may be saturated with adsorption, so the exhaust pipe is detachably connected to the pipeline so that the adsorption layer can be disassembled and replaced.

[0012] Preferably, the processing assembly further comprises a mounting rack, which comprises a plurality of placement boxes with hollow interiors and connecting rods connected between adjacent placement boxes, the side walls of the placement boxes are provided with placement grooves for placing the placement boxes, and the opposite end faces of the placement boxes are provided with through grooves.

[0013] By adopting the above technical solution, a placement box is provided for placing the adsorption layer, and the distances between a plurality of adsorbents are kept constant.

[0014] Preferably, the connecting rod is protrudingly provided with a partition, and a through cavity for the exhaust gas to pass through is formed between the partition and the inner wall of the exhaust pipe, and a plurality of through cavities form a wave-shaped cavity for the exhaust gas to circulate.

[0015] By adopting the above technical solution, the wavy arrangement of the multiple cavities allows the exhaust gas generated by the plastic to flow through the cavities under the action of the vacuum pump, thereby lengthening the exhaust gas flow path, that is, prolonging the exhaust gas's residence time in the exhaust pipe, thereby improving the adsorbent's adsorption of harmful substances in the exhaust gas. Since the exhaust gas generated by the plastic during the heating process contains a certain amount of solid particles, they are retained on the partition, reducing the content of solid particles in the final exhaust gas, allowing for cleaning after the mounting frame is disassembled.

[0016] Preferably, the connecting rod is arranged in an arc shape, the connecting rod abuts against the inner wall of the exhaust pipe, and a plurality of connecting rods are arranged between the two placement boxes.

[0017] By adopting the above technical solution, since some solid particles in the exhaust gas may adhere to the exhaust pipe, the connecting pipe is set in an arc shape and abuts against the inner wall of the exhaust pipe. After the mounting bracket is removed from the exhaust pipe, some solid particles adhering to the exhaust pipe can be scraped off, thereby cleaning the exhaust pipe.

[0018] Preferably, the lower end of the mounting frame is provided with a cleaning rod extending into the pipe, the cleaning rod is provided with a scraper abutting the inner wall of the transparent plate, the lower end of the cleaning plate is provided with a receiving groove for receiving the solid particles scraped by the scraper, the cleaning rod rotates around the axis of the pipe, and a magnetic block is provided outside the pipe that is magnetically attracted to the cleaning rod.

[0019] By adopting the above technical solution, solid particles are generated during the heating process of the plastic, and as the air is pumped up by the vacuum pump, they may adhere to the transparent plate. Therefore, a cleaning rod that rotates around the axis of the mounting frame is provided. As the magnetic block rotates around the pipe outside the pipe, the cleaning rod is driven to scrape the inner wall of the transparent plate. During the scraping process, excess solid particles fall onto the receiving groove below for collection, so as to reduce the impact of solid particles adhering to the transparent plate on subsequent inspection.

[0020] Preferably, the heating component is an infrared heating tube wound around the outside of the barrel, the infrared heating tube is spirally wound around the outer peripheral wall of the barrel, and the outer peripheral wall of the barrel is provided with a groove for embedding the infrared heating tube.

[0021] By adopting the above technical solution, the infrared heating tube has a relatively high heating efficiency and is easy to control, so that the temperature of the plastic can be controlled after checking at the observation port, reducing the possibility of the plastic being in an incomplete melting state. In addition, the grooves are provided so that the infrared heating tube can be fixedly installed to reduce the possibility of loosening.

[0022] In summary, the present invention has the following beneficial effects:

[0023] A pipe is provided between the heating component and the discharge port, and an observation port is provided on the outer peripheral wall of the pipe, which is sealed by a transparent plate so that the plastic in a molten or softened state can be viewed through the transparent plate and the observation port to reduce the possibility of incomplete melting. In order to reduce the opening amount of the exhaust pipe between the heating component and the discharge port and the processing difficulty caused by the corresponding opening, an exhaust pipe is directly provided on the pipe and a processing component is provided in the exhaust pipe. The waste gas generated by the plastic in a molten state after heating can be discharged after being processed by the processing component, thereby reducing the emission of waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 is a schematic cross-sectional structural diagram of a processing assembly in an embodiment of the present application;

[0026] Figure 3 It is a structural diagram of the processing component in an embodiment of the present application.

[0027] Explanation of the accompanying symbols: 1. Frame; 2. Cylinder; 21. Feed port; 22. Feed hopper; 23. Discharge port; 24. Groove; 3. Heating assembly; 4. Screw extruder; 5. Pipeline; 51. Observation port; 52. Transparent plate; 6. Exhaust pipe; 61. Flange; 62. Bolt; 63. Nut; 7. Processing assembly; 71. Adsorption layer; 72. Vacuum pump; 73. Mounting frame; 731. Placement box; 732. Connecting rod; 74. Limiting member; 75. Cleaning rod; 76. Slide; 77. Scraper; 78. Receiving groove; 79. Magnetic block; 8. Placement groove; 81. Through groove; 9. Partition; 91. Through cavity. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 , further details of this application are given.

[0029] The embodiment of the present application discloses an environmentally friendly plastic particle granulation device.

[0030] Example:

[0031] An environmentally friendly plastic granulation device, referring to Figure 1, comprising a frame 1, a hollow barrel 2 disposed on the frame 1, and a heating assembly 3 disposed on the barrel 2. In this embodiment, the length direction of the barrel 2 is parallel to the length direction of the frame 1 and is fixedly connected to the upper end surface of the frame 1. The outer peripheral wall of the barrel 2 near one end thereof is provided with an inlet 21. The barrel 2 is provided with a feed hopper 22 at the inlet 21, and the end surface of the other end of the barrel 2 is provided with a discharge port 23. The barrel 2 has a built-in screw extruder 4, the length direction of the screw extruder 4 being parallel to the length direction of the barrel 2. The screw extruder 4 is used to extrude the plastic entering from the inlet 21 into a molten or softened state through the heating assembly 3, and push it toward the discharge port 23.

[0032] In this embodiment, the heating component 3 is an infrared heating tube wound around the outside of the barrel 2. The infrared heating tube is spirally wound around the outer wall of the barrel 2. The outer wall of the barrel 2 is provided with a groove 24 for embedding the infrared heating tube to improve the fixing effect between the infrared heating tube and the barrel 2.

[0033] Reference Figure 1 、 Figure 2 A pipe 5 is fixedly provided on the outer peripheral wall of the barrel 2 between the heating component 3 and the discharge port 23. The outer peripheral wall of the pipe 5 is provided with an observation port 51 for viewing the plastic in a molten or softened state. In this embodiment, the observation port 51 is arranged in a ring shape around the axis of the pipe 5. A transparent plate 52 is provided on the pipe 5 at the observation port 51, so that the transparent plate 52 is arranged in a tubular shape.

[0034] The end of the pipe 5 away from the barrel 2 is connected to an exhaust pipe 6. It should be noted that the exhaust pipe 6 can be arranged as a vertical straight pipe or a curved pipe. In this embodiment, the exhaust pipe 6 is arranged as a vertical straight pipe. In this embodiment, the exhaust pipe 6 is detachably connected to the pipe 5. Specifically, the outer peripheral walls of the exhaust pipe 6 and the outer peripheral walls of the pipe 5 both protrude with flanges 61 that abut each other. Bolts 62 are inserted through the two flanges 61. Nuts 63 are threadedly connected to the bolts 62 to install the exhaust pipe 6 on the pipe 5.

[0035] Reference Figure 2 、 Figure 3The exhaust pipe 6 is provided with a treatment component 7 for treating the generated exhaust gas. In this embodiment, the treatment component 7 specifically includes an adsorption layer 71 built into the exhaust pipe 6, an air pump 72 fixedly connected to the exhaust end of the exhaust pipe 6, a mounting bracket 73 slidably connected to the exhaust pipe 6, and a limiter 74 for limiting the sliding of the mounting bracket 73. Among them, there are several adsorption layers 71 spaced apart along the length direction of the exhaust pipe 6, which are specifically arranged according to needs. The mounting bracket 73 includes several placement boxes 731 with a hollow interior and connecting rods 732 connected between adjacent placement boxes 731. The side walls of the placement boxes 731 are provided with placement grooves 8 for placing the placement boxes 731. The opposite end surfaces of the placement boxes 731 are penetrated by through grooves 81. The placement boxes 731 abut against the inner wall of the exhaust pipe 6. Among them, the connecting rods 732 are arranged in an arc shape, and the connecting rods 732 abut against the inner wall of the exhaust pipe 6. Several connecting rods 732 are provided between two placement boxes 731.

[0036] In this embodiment, the limiting member 74 is specifically a limiting block fixedly connected to the placement box 731 disposed near the pipe 5, and the upper end surface of the pipe 5 is provided with a limiting groove for the limiting block to slide and insert, so as to limit the sliding of the installation box.

[0037] Furthermore, in order to improve the adsorption effect of the adsorbent on harmful substances in the exhaust gas, a partition 9 is protruding from the connecting rod 732, and a through cavity 91 for the exhaust gas to pass through is formed between the partition 9 and the inner wall of the exhaust pipe 6. Several through cavities 91 form a wavy cavity for the exhaust gas to circulate, so as to increase the residence time of the exhaust gas in the exhaust pipe 6.

[0038] Furthermore, since solid particles are generated during the heating process of the plastic, they may adhere to the transparent plate 52 as the air is pumped up by the vacuum pump 72. Therefore, in this embodiment, a cleaning rod 75 extending into the pipe 5 is provided at the lower end of the mounting frame 73. A chute 76 is provided at the lower end of the mounting frame 73 for sliding connection of the upper end of the cleaning rod 75. It should be noted that the chute 76 should avoid the setting of the limit block. The cleaning rod 75 is provided with a scraper 77 that abuts against the inner wall of the transparent plate 52. The lower end of the cleaning plate is provided with a receiving groove 78 for receiving the solid particles scraped by the scraper 77. The cleaning rod 75 rotates around the axis of the pipe 5. A magnetic block 79 is provided outside the pipe 5 to be magnetically attracted to the cleaning rod 75. The cleaning rod 75 is made of a metal material that can be magnetically attracted to the material of the magnetic block 79.

[0039] The implementation principle of an environmentally friendly plastic particle granulation device in an embodiment of the present application is as follows: a pipe 5 is provided between the heating component 3 and the discharge port 23, and an observation port 51 is provided on the outer peripheral wall of the pipe 5, which is sealed by a transparent plate 52 so that the plastic in a molten state or a softened state can be viewed through the transparent plate 52 and the observation port 51 to reduce the possibility of incomplete melting. In order to reduce the opening amount of the exhaust pipe 6 between the heating component 3 and the discharge port 23 and the processing difficulty caused by the corresponding opening, an exhaust pipe 6 is directly provided on the pipe 5 and a processing component 7 is provided in the exhaust pipe 6, so that the waste gas generated by the plastic in a molten state after heating can be discharged after being treated by the processing component 7, thereby reducing the emission of waste gas.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An environmentally friendly plastic granulation device, characterized by: The invention comprises a frame (1), a hollow barrel (2) arranged on the frame (1), and a heating assembly (3) arranged on the barrel (2), wherein an inlet (21) is provided on the outer peripheral wall of one end of the barrel (2) close to the barrel (2), and an outlet (23) is provided on the end face of the other end of the barrel (2), and a screw extruder (4) is built in the barrel (2), and the screw extruder (4) is used to heat the plastic entering from the inlet (21) to a molten state or a softened state through the heating assembly (3) and extrude the plastic into a strip shape, and The barrel (2) is pushed toward the discharge port (23); a pipe (5) is fixedly provided on the peripheral wall of the barrel (2) between the heating component (3) and the discharge port (23); the peripheral wall of the pipe (5) is provided with an observation port (51) for viewing the plastic in a molten state or a softened state; the pipe (5) is provided with a transparent plate (52) at the observation port (51); the end of the pipe (5) away from the barrel (2) is connected to an exhaust pipe (6), and a treatment component (7) for treating the generated waste gas is provided in the exhaust pipe (6).

2. The environmentally friendly plastic granulation device according to claim 1, characterized in that: The observation port (51) is arranged in a ring shape around the axis of the pipeline (5).

3. The environmentally friendly plastic granulation device according to claim 1, characterized in that: The exhaust pipe (6) is detachably connected to the pipeline (5), and the processing component (7) comprises an adsorption layer (71) built into the exhaust pipe (6) and an air pump (72) fixedly connected to the air outlet end of the exhaust pipe (6). A plurality of adsorption layers (71) are arranged at intervals along the length direction of the exhaust pipe (6).

4. The environmentally friendly plastic granulation device according to claim 3, characterized in that: The processing assembly (7) further includes a mounting frame (73) slidably connected to the exhaust pipe (6) and a limiting member (74) for limiting the sliding of the mounting frame (73); the mounting frame (73) includes a plurality of placement boxes (731) with hollow interiors and a connecting rod (732) connected between adjacent placement boxes (731); a placement groove (8) for placing the placement box (731) is provided on the side wall of the placement box (731); a through groove (81) is provided through the opposite end surfaces of the placement box (731); and the placement box (731) abuts against the inner wall of the exhaust pipe (6).

5. The environmentally friendly plastic granulation device according to claim 4, characterized in that: The connecting rod (732) is provided with a partition (9) protruding therefrom, and a through cavity (91) for exhaust gas to pass through is formed between the partition (9) and the inner wall of the exhaust pipe (6), and a plurality of through cavities (91) form a wave-shaped cavity for exhaust gas to circulate.

6. The environmentally friendly plastic granulation device according to claim 4, characterized in that: The connecting rod (732) is arranged in an arc shape, and the connecting rod (732) abuts against the inner wall of the exhaust pipe (6). A plurality of connecting rods (732) are arranged between the two placement boxes (731).

7. The environmentally friendly plastic granulation device according to claim 4, characterized in that: The lower end of the mounting frame (73) is provided with a cleaning rod (75) extending into the pipe (5), the cleaning rod (75) is provided with a scraper (77) abutting against the inner wall of the transparent plate (52), the lower end of the cleaning plate is provided with a receiving groove (78) for receiving solid particles scraped by the scraper (77), the cleaning rod (75) rotates around the axis of the pipe (5), and a magnetic block (79) is provided outside the pipe (5) for magnetically attracting the cleaning rod (75).

8. The environmentally friendly plastic granulation device according to claim 1, characterized in that: The heating component (3) is an infrared heating tube wound around the outside of the barrel (2). The infrared heating tube is spirally wound around the outer peripheral wall of the barrel (2). The outer peripheral wall of the barrel (2) is provided with a groove (24) for embedding the infrared heating tube.

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